What is the name of the NNRTI that comes in an XR formulation?

The correct response highlights that rilpivirine is known for its extended-release (XR) formulation. This means it provides a longer duration of action, allowing for less frequent dosing compared to other NNRTIs, which is advantageous for patient compliance.

Rilpivirine is distinct in its formulation, as it is designed to maintain effective drug levels in the body over a prolonged period. Typically, patients only need to take it once daily when using the XR form, making it a practical choice for managing certain HIV treatment regimens.

This characteristic contrasts with the other NNRTIs mentioned. Efavirenz is taken daily but does not have an XR formulation. Nevirapine, while effective, is not known for an extended-release version either. Doravirine, like rilpivirine, is also taken once daily but does not specifically have an XR formulation recognized in the same way.

In summary, rilpivirine’s XR formulation sets it apart as a more convenient option in the realm of antiretroviral therapies, contributing to better adherence among patients.